General fact: 83608 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Mathematical fact: 83608 is a boring number.
Trivia: 83608 is a boring number.
Historical date: November 28th is the day in 1895 that the first American automobile race takes place over the 54 miles from Chicago's Jackson Park to Evanston, Illinois.